Architect Antoni Gaudí, who lived and worked in Barcelona and Madrid, left several famous works like the Palau Güell in the city's old center, the Parc Güell at the northern tip of Gràcia, and the immense but still unfinished church of the Sagrada Família, which has been under construction since 1882, financed by popular donations like the cathedrals in the Middle Ages. The Sagrada Família is destined for completion in 2020.